MEASUREMENT OF THE TEMPORAL COHERENCE OF ULTRASHORT HARMONIC PULSES -TOWARDS COHERENT SPECTROSCOPY IN THE EXTREME-ULTRAVIOLET

Authors
BELLINI M HANSCH TW
Citation
M. Bellini et Tw. Hansch, MEASUREMENT OF THE TEMPORAL COHERENCE OF ULTRASHORT HARMONIC PULSES -TOWARDS COHERENT SPECTROSCOPY IN THE EXTREME-ULTRAVIOLET, Applied physics. B, Lasers and optics, 65(4-5), 1997, pp. 677-680
Citations number
16
Categorie Soggetti
Physics, Applied",Optics
Journal title
Applied physics. B, Lasers and optics → ACNP
ISSN journal
09462171
Volume
65
Issue
4-5
Year of publication
1997
Pages
677 - 680
Database
ISI
SICI code
0946-2171(1997)65:4-5<677:MOTTCO>2.0.ZU;2-G
Abstract
We propose a novel experimental method for measuring the degree of tem poral coherence of ultrashort pulses of harmonics generated by focusin g intense laser pulses in a gas jet. The method is demonstrated in a s imple configuration with the third harmonic generated in air from a 12 0-fs long infrared (800-nm) pulse, but the approach can be readily ext ended to the characterization of higher-order harmonics. We propose th e use of a modified version of the experimental apparatus to perform h igh-resolution Ramsey-type coherent spectroscopy in the VUV and XUV.